Napa's place is very recommended. Its' location is great, just 450meters from Hua Lamphong MRT station. Easy access.
The house...I say it's a hidden gem. It's very beautiful! Tastefully decorated and meticulously clean!
Napa, the host, she gave us many suggestion about where to find halal food, public transportation etc. Very helpful and really nice. I would like to stay there again next time I visit Bangkok.
It really was a pleasant stay.
Thank you, Napa.